Saddle-traversing mechanism



Jan. '19 ,1926.

. 1,570,401 R. H. RAUSCH SADDLE TRAVERSING MECHANISM 2 Sheets-Sheet 1 Filed Dec.

abi .I A v 0 o "$0 1 I how INVENTOR ATTORNEY R. H. RAUSCH SADDLE TRAVERSINQ MECHANISM 2 Sheets-Sheet 2 Filed Dec. 20 192:5

IN l/E N TOR A TTOHNEY chine.

fine adgustments, this traversing can best be Patented Jan. 19, 1926..

ta rt .1 1 s n5 s ROSWELL it. nnnson, or PLAINFIELD, NEW Jnnsnn nssrenon To nInns-BEMENn POND'COMPAI\1Y,OF NEW roman, Y., ACORPORATlON-OF NEW" JERSEY."

SADDLE-TRAVERSING ivinonnmsiu. l y

Application filed December 20,1923. I Serial No. 681,784. 3

To all whom it may concern Be it known that I, ROSWELL H. Ransom, a citizen of the UnitedStates, lQSlCllIlg' at Plainfie'ld, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Saddle Traversing Mechanism, lowingis a specification.

This invention relates to machine tools, and particularlyto improved means for traversing a saddle or carriagef along a guldeway of the machine either by hand or power. In radial drills, lathes and like machines, it is necessary-to very frequently traverse the tool carriage along itssupporh" in wa s to different oosit'ions on, the ma- Qrdmarily for short d stancesjand accomplished manually :but the. longer traversing operations can be more efiiciently accomplished by power. The primary object of my invention is to provide improved means for manually and power traversing the saddle or carriage of a machine tool with greater easevand efficiency. j V, It may frequently'benecessary to power traverse the saddle to the approximate position desired and then manually adjnstthe same. My invention contemplates j means including a single manuallyloperated me ber for operatively controlling the power traversing of thesaddle and adjusting the same manually. Another objec'tof my. invention is therefore the provision ofmech ani'sm for operatively traversing the-,saddlebyhand and powerand a single" man-" ually' operated member; for operatingand controlling such mechanism.

lVhile, my 'invention. contemplates the power traversing of the. saddle from any source of power, such traversing isfpreferably accomplished by an independent electrio motor. Inthe drawings such a -motor is illustratedas mounted on the'saddle-or' carriageand is adapted to be controlled by a switch adjacent thereto. "A manually' 1 operated' handle andmeans cooperating there-' with are provided onthe saddle for traversing the carriage manually and operating the switch to power traversethel'saddle, the handle having two 1 positions respectively 3 for the manual and: power traversing. An-

other object of lily-invention is to provide. a saddle w1th a travers ng. motor and, m, 1

of which the fol-.

on for that purpose.

. Fig.

proved means including a single operating handle for optionally traversing the [saddle either by hand 01' from the motor.

Viththe above and other objects in view, my"iiiveiitioirconsists. in the features of construction and operation set forthin the following specification: and illustrated. in the accompanying drawings. In such; drawings annexed hereto and forming a party of 7 this specification, I have-illustrated certain em bodimentsa of" my invention in connection with certain machine tools but-.itwill be un- (lerstood that the invention can. be otherwise embodied and that the drawings are not to be construed as defining or limitng the scope ofthe invent on, the 'claims appended to th s speclficat on beingrehed up;

,Referring to the figures ofthe-drawings: v Figure 1 1s] .a front elevatlon of a radial drill embodying my invention.

Fig. 2 is an enlarged fragmentaryv sec- ,tional view :thereof taken. approximately on line 2-2-0f1Eigl-L, T

3 is'alview taken "on line 3 3 of Fig, V.

motor controlling switch. v

' 5 is a 'v'iew similartoFig.Qbut 1 through .a lathe carriage and showing my invention in connection therewith, thisv view being taken on line 8-8 ofv Fig.9. 1

,Fig. 9, is a fragmentary front elevation of the mechanism shown in Fig. 8. Fig.' 10 is an [end elevation thereof.

In' Figs. 1 itodof the 'drawings',-'I have illustrated invention in connection with aradial drilling machine. In these figures,

indicates the bed of the machine from I which risesfa vertical column 2. A hot. izontal arm 3 Iis'adjustably mounted. for vertical movementon the lc'olumnf A drill head supporting saddle, or carriage 4 is slida'b'lyzmounted onthe ways 5"0f the arm at, one side of'j' the column, a gib6 being provided I for holding the saddle *on the ways. The drillxspindlel is adapted 'jto be rotated and, fed, from a motor '8 operating Fig. dis a. d agrammati view of the through gearing in a box 9 and through an arm shaft 10, as shown in Patents Nos. 1,296,863 and 1,368,294.

In the drawings I have illustrated rack and pinion means for traversing the saddle along the arm. A rack 11 secured rigidly to the arm is engaged by a pinion 12 on a vertical shaft 13 in the saddle. A bevel gear 14 on the lower end of this shaft is in mesh with a bevel gear 15 on a horizontal tubular shaft 16. The shaft 16 and the operating means therefor are preferably supported by a member 17 secured to the under side of the saddle. The shaft 16 can be rotated manually or rotated by a motor 18 as hereinafter described.

The motor 18 is secured to the under side of the member 17 and a pinion 19 on the motor shaft is in mesh with a gear 20 keyed to the shaft 16. The motor is controlled by a switch within a boX 21 secured to the rear of the-member 17. The switch contact bar 22 is mounted on a rod 23 extending through the member 17 and tubular shaft 16. Springs 24 acting on an arm 25 normally hold the switch arm in the netural position illustrated in Fig. 4. Rotation of the rod and bar to a position AB will operate to rotate the motor in one direction and rotation of the rod and bar to a position X-Y will operate to rotate the motor in the opposite direction, as will be understood.

A gear 26 is keyed to the forward end of the rod 23 and a member 27 is loosely mounted on the rod between the gear 26 and the hub 28 of the gear 20, anti-friction ball bearings 29 being provided in ways 30 between these three members. A handle 31 is pivoted to the member 27 at 32 and can be moved in opposite directions on such pivot to engage teeth 33 and 34 thereof respectively with the teeth of the gears 26 and teeth 35 cut in the hub 28. Springs 36 and gravity normally hold the handle in the neutral and disengaged position.

The operation of the mechanism as thus far described is as follows: When it is desired to hand traverse or adjust the saddle along the arm, the operator grasps the handle 31 and,moves the same to engage the teeth 34 thereof with the teeth 35. Thus a direct connection is established between the handle and the operating mechanism for the pinion 12 and the operator can rotate the handle 31 and. gear 20 in one direction or the other to manually traverse .or adjust the saddle as desired. To power traverse the saddlefrom the motor 18, the operator moves the handle to engage the teeth 33 thereof with the teeth-of the gear 26. Thus a direct connection is established between the handle and the switch arm 22 and the operator can rotate the ha-ndle and rod 23 in one direction or the other to place the arm in positions A-B and XY and therefore rotate the motor and traversing mechanism in either direction as desired.

As above described, the handle 31 pro- 7 with the gear 26 for power traversing. 1S

in no way effected by the movement of the traversing mechanism, the handle being moved only sufficiently to effect the connections illustrated in Fig. 4.

In Figs. 5, 6 and 7, I have illustrated a modified form of my invention wherein the saddle can be power traversed from the arm shaft 10 instead of from the motor 18. as just described. A rack 37 is secured to the arm 3 and is engaged by a. pinion 33 on a vertical shaft 39 carried by the saddle 4 A bevel gear 40 on the lower end of shaft 39 meshes with two bevel gears 41 loose on the arm shaft 10 between two saddle bearings 42. A clutch 43 is splined to the arm shaft between the gears 41 and may be shifted into driving engagement with either of such gears.

A shaft 44 carried by the saddle has a bevel gear '45 on its inner end in mesh with the two bevel gears 41. A clutch operating rod 46 extending through this shaft has a disk 47 on its inner end in which is eccentric-ally mounted a pin 48 engaging in the groove 49 of the clutch. Rotation of the rod-in one direction or the other is adapted to shift the clutch respectively into engagement with the two bevel gears 41 and thereby rotate the traversing pinion 38 in one direction or the other as desired. A spring 50' mounted on the saddle and engaging in the groove 49 of the clutch normally holds the clutch in the neutral position illustrated in Fig. 6.

The mechanism for operating the shaft 44 and the rod 46 from the handle 31. and now to be described is substantially the same as that shown and hertofore described in reference to Figs. 1 to 4 of the drawings. A gear 26 is keyed to the forward end of the rod 46 and a member 27 is loosely mounted on the rod between the gear 26 and a gear 51 on the shaft 44, antifriction ball bearings being provided between these three members. The handle 31" is pivoted to the 'meinber 27- at 32* and 7 above described can be applied to various In Figs. 8 to 10, I have illustrated the novel mechanism shown in Figs. 1 to 4: as. applied to a lathe be moved opposite directions on such pivot to engage theteeth 33" and 84* thereof respectively with the'teeth 'of the gear 26 and the gear 51. Springs36 and gravity normally holdthehandle in the neutral and disengaged" position. 1 a Y d To manually traverse the saddle, the handle 81" is moved'to engage the teeth 341E thereof with the gear 51' whereupon the pinion 38 can be rotated in either direction as desired, 'the'clutch l3 being in the neutral position. To power traverse the saddle from the arm shaft 10, the handle 31 is moved to engage the teeth 33 thereof with the teeth of the gear 26, Theclutch can thereupon be shifted in either direction to power traverse the carriagein either,

direction, as desired. It will be noted'that the several novel and advantageous features heretofore pointed out in referenceto the mechanism shown in'Figs. 1 to 4 are also retainedin the operating andcontrolling mechanism just described. v d

It will be understood that the'novel means forms of machine tools.

tortraverse the tool sad-dle or carriage there of. The'tool carriage 52 is slidably ,mount- 7 ed on the Ways of the lathe bed 53. A rack v 5%. secured to the under side .of the bed is engaged by a pinion 551011 a shaft 56 rotatably mounted in the carriage. A gears?" on the shaft 56 is engaged b'y apin'ion58 on atubular shaft316 The tubular-shaft 16 and pinion 58 are operated from mechanism, including a motor 18' secured to the carriage, corresponding to that shown in Figs. 1 to a and heretofore described. The motor 18 is also controlled from the switch operating rod 23 in the manner heretofore,

d be traversed manually or fromthe motor 18, the clutch gear 59 of the carriage feeding mechanism is in the neutral position illustrated in Fig.8. 1 r W What I claim is: 1 p 1. In a machine tool, the combination of a support having a guideway thereon, a

saddle slidably mounted on theguideway,

a driving connection including a rotary I element for moving the saddle on the sup port, a power element, a manually operable member, means adapted to be operated by" the member for optionally" rotating the rotary element manually or making connections to power rotate the rotary element f position.

hemyph power element, and means normally retaining the, member in ts inoperative a support havinga guideway thereon, a

saddle'slidably mounted on the guideway,- a rack on the support, a pinioniion the saddle'engagingv the rack, a power element, a

"manually operable member, means adapted to be operated'by the member for optional- 1y irotatingthe pinion manually or'power rotating the pinion from the power element, and means normally retaining the member in its inoperative position.

. In a machine tool,'the combination of suppor ha ing a guideway th a saddle slidably mounted on the guideway,

a driving connection including a rotary 2; In a machine tool, the combination of element for movingithe saddle on the sup- 1 I port, ainormally"operative power, element,a

manually operable member, means adapted to I be operated by the member formanually rotatingthe rotary element in eithendir'e ction fromtha power element, and means operated by said member to rotate the power element in either. direction. 7 i r 4. In a" machine tool, the combination of a supportf having a guideway thereon, a'

saddle slidably mountedon the guideway, a driving connection. including a rotary element for moving the saddle on the support,

a power element, a-f shaft operativelyconheated to the rotary element, a member coaxial of the shaft, a handle pivoted to the member, pivotal movement of the handle in for controlling the rotation .of" the rotary element from the *power element, pivotalmovement of" the handle in the opposite one; direction being adapted to connect the a same with the shaft whereby the rotary "element can be rotated manually; and means,

direction connecting the same with such means. I I g 5. In a machme tool,'the combination of av support-having a guideway thereon, a

saddleslidably mounted on the guideway, a driving. connection including a rotary 'element for moving the saddle on the support, a power element, a shaft operatively connected tothe rotary element, a member coaxial of the shaft, a handle pivoted to the member, pivotal movement of the handle in one direction being adapted to connect the same with'the shaft whereby thelrotary element can be rotated 'm'anually, means for controlling the rotation 'ofthe rotary element'from the power element, movement of the handle in the opposite direction'connect J mg the samewith such means, and means.

normally holding the handle in the intermediate position.

6. In a machine tool,

the combination of. a support having a guideway thereon, a.

. saddle slidably mountedon the guideway, .a

driving connection including aifotary vale-,

ment for moving the saddle on the support, a motor on the saddle in constant driving connection with the rotary element, and means for manually rotating the element to hand traverse the saddle and for controlling the motor to power traverse the saddle.

'7. In a machine tool, the combination of a support having a guideway thereon, a saddle slidably mounted on the guideway, a driving connection including a rotary element for moving thesaddle on the support, a motor on the saddle in constant driving connection with the rotary element, a switch being connected to the pinion whereby to hand traverse the saddle and in another position being connected to the switch to power traverse the saddle.

9. In a machine tool, the combination of a support having a guideway thereon, a saddle slidably mounted on the guideway, a driving connection including a rotary ele- I ment for moving the saddle on the support,

a motor on the saddle in constant driving connection with the rotary element, a switch for controlling the motor, a toothed element connected to the switch, a toothed element connected to the rotary element, and a handle pivoted intermediate the toothed elements and having teeth for engaging such elements, pivotal movement of the handle in opposite directions beingadapted to engage the teeth thereof with the two toothed elements respectively.

10. In a machine tool, the combination of a support having a guideway thereon, a saddle slidably mounted on the guideway, a driving connection including a shaft and arotary element for moving the saddle on the support, a motor on the saddle operatively connected to the rotary element, a switch for controlling the motor, a switch controlling rod extending through the said shaft, a toothed element secured to the rod, a handle mounted on the rod adjacent the toothed element, movement of the handle in one direction connecting the same with the shaft for manually traversing the saddle and movement of the handle in the other'direction connecting the same with the toothed element for operatingthe switch.

11. In a radial drill, the combination of a vertical column, a horizontal arm on the column, a saddle slidable 011 the arm, a driving connection including a rotary element for moving the saddle on the arm, a power element, a member for controlling the power drive therefrom to the rotary element, a

member connected to the rotary element, and a handle between such members and mov able to operatively engage either member, the handle, being adapted to respectively control the power drive and manually rotate the rotary element when engaged with the said members respectively.

, In testimony whereof, I hereto afiix my signature.

ROSWVELL H. RAUSGH. 

